Merge pull request #2 from Sigafoos/examples

Adding an example (adafruit/circuitpython#493)
#2 adafruit/circuitpython#493

Thanks, tried it out and work great.

Author: mrmcwethy

examples/display_temperature.py

@@ -0,0 +1,21 @@
+import time
+import adafruit_thermistor
+import board
+
+# these values work with the Adafruit CircuitPlayground Express.
+# they may work with other thermistors as well, as they're fairly standard,
+# though the pin will likely need to change (ie board.A1)
+pin = board.TEMPERATURE
+resistor = 10000
+resistance = 10000
+nominal_temp = 25
+b_coefficient = 3950
+
+thermistor = adafruit_thermistor.Thermistor(pin, resistor, resistance, nominal_temp, b_coefficient)
+
+# print the temperature in C and F to the serial console every second
+while True:
+    celsius = thermistor.temperature
+    fahrenheit = (celsius * 9 / 5) + 32
+    print('== Temperature ==\n{} *C\n{} *F\n'.format(celsius, fahrenheit))
+    time.sleep(1)